Among Montessori teaching AIDS, the most classic teaching AIDS are sensory education teaching AIDS, such as socket cylinder, pink tower, brown ladder, long stick and so on. The biggest feature of Montessori teaching AIDS is that children can actively gain a lot of sensory experience and master incomprehensible mathematical knowledge through independent operation of teaching AIDS. Montessori teaching AIDS are designed according to children's age, and different teaching AIDS are suitable for children of different ages.